Offer04.二维数组中的查找/Solution.java
<reponame>codeSu97/SwordToOfferclass Solution {
    public boolean findNumberIn2DArray(int[][] matrix, int target) {
        int i = matrix.length - 1, j = 0;

        while (i >= 0 && j < matrix[0].length) {
            if (matrix[i][j] > target) {
                i--;
            } else if (matrix[i][j] < target) {
                j++;
            } else {
                return true;
            }
        }
        return false;
    }
}